I observed the same output you mentioned.I changed 0.33 to 0.5 (higher symmetry). Then it works.But 0.49 would not work. Maybe because of a bug in a routine to check the crystal symmetry.Anyway the solids does not have good spece filling and requires empty sphere as below.

takao

===========================================================I recommend you to install XtalEdit to Windows(is better) anyway.You need to install python2.2 or above and Numerical python.Not so difficult for Windows.After XtalEdit started, put your input to EditorWindowand push imort button of AkaiKKR. I did it and it was well translated to csy form (standard format in XtalEdit).Then push rasmol button. I could see the crystal structure.(addCV1=a*EXCV2=a*EYCV3=a*EZso as to see the cell by conventional vectors).